High-performance fastener with explosion-proof function

Abstract

The utility model provides a high-performance fastener with an anti-explosion function, which belongs to the field of fasteners, and comprises a bolt, a bolt core, an anti-explosion cover, a bolt core, a bolt core, an anti-explosion cover and a connecting rod, and the bolt comprises a hexagonal block and a screw rod which are fixedly connected with each other; the nut is in threaded connection with the screw rod, a limiting groove is formed in the end, away from the hexagonal block, of the screw rod in the diameter direction of the screw rod, a limiting ring is coaxially fixed to the nut, a plurality of clamping grooves are formed in the limiting ring in a penetrating mode, and an n-shaped spring buckle is arranged in the limiting groove. The spring buckles are located in two of the clamping grooves and buckled in the limiting rings. According to the utility model, the nut and the bolt are ingeniously connected into a whole through the spring buckle, no relative rotation occurs between the nut and the bolt, and no loosening phenomenon occurs between the nut and the bolt, so that the connection stability and the explosion-proof performance between the bolt and the nut are greatly enhanced; the connection mode can also ensure that the equipment is stably fastened, so that the explosion-proof performance of the equipment is not influenced.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, and in particular to a high-performance fastener with explosion-proof function. Background Technology

[0002] In explosion-proof electrical equipment, fasteners (such as bolts and nuts) are an important part of maintaining the integrity of its explosion-proof type. These fasteners ensure the safe operation of the equipment in explosive environments by tightening the explosion-proof joints or maintaining the seal of the enclosure.

[0003] If the fasteners have poor anti-loosening performance, such as bolts and nuts commonly used in use, they may become loose, fall off, or break, which will cause gaps between the explosion-proof shell and the mating surface, thus affecting the explosion-proof performance of the equipment. Therefore, ensuring the anti-loosening performance of bolts and nuts is crucial.

[0004] Therefore, this application proposes a high-performance fastener with explosion-proof function. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides a high-performance fastener with explosion-proof function.

[0006] An embodiment of this utility model provides a high-performance fastener with explosion-proof function, comprising:

[0007] A bolt, comprising a hexagonal block and a threaded rod, wherein the threaded rod is fixedly connected to the hexagonal block;

[0008] A nut is threaded onto a screw rod. A limiting groove is formed along the diameter of the screw rod at the end away from the hexagonal block. A limiting ring is coaxially fixed on the nut. Multiple slots are provided through the limiting ring. A Z-shaped spring buckle is provided in the limiting groove. The spring buckle is located in two of the slots and is fastened inside the limiting ring.

[0009] Furthermore, the hexagonal block and the screw are integrally formed, and the hexagonal block and the screw are coaxially arranged.

[0010] Furthermore, a first washer ring is fitted onto the screw to abut against the hexagonal block.

[0011] Furthermore, a second washer is fitted onto the screw to abut against the nut.

[0012] Furthermore, the limiting ring includes a fixing ring fixed to the nut, a retaining ring fixed on the side of the fixing ring along the axial direction, and the groove is provided on the retaining ring.

[0013] Furthermore, both ends of the spring buckle are fixed with limit rods, which can abut against the bottom of the retaining ring.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This utility model cleverly connects the nut and bolt into a whole, preventing any relative rotation between them and preventing any loosening. This greatly enhances the connection stability and explosion-proof performance between the bolt and nut. At the same time, this connection method can also ensure that the equipment is stably tightened, thus not affecting the explosion-proof performance of the equipment. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a high-performance fastener with explosion-proof function as described in an embodiment of this utility model.

[0017] Figure 2 This is an inverted schematic diagram of a high-performance fastener with explosion-proof function as described in an embodiment of this utility model.

[0018] Figure 3 This is a schematic diagram of the limiting ring and spring buckle in a high-performance fastener with explosion-proof function as described in this utility model embodiment.

[0019] In the above attached figures: 1 hexagonal block, 2 screw, 3 first washer, 4 second washer, 5 nut, 6 limiting ring, 7 limiting groove, 8 spring buckle, 9 slot, 10 limiting rod. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0021] like Figures 1-3 As shown in the figure, this utility model embodiment proposes a high-performance fastener with explosion-proof function, comprising:

[0022] The bolt includes a hexagonal block 1 and a screw 2. The screw 2 is fixedly connected to the hexagonal block 1. The hexagonal block 1 and the screw 2 are integrally formed and are coaxially arranged to ensure overall stability.

[0023] Bolt and nut 5 are made of alloy steel, which is steel made by adding certain alloying elements (such as chromium, nickel, molybdenum, etc.) to carbon steel. Alloy steel generally has better mechanical properties and corrosion resistance than carbon steel, and can meet higher requirements for explosion-proof performance. In addition, alloy steel has good heat resistance and can maintain stable performance in high-temperature environments, thus increasing the explosion-proof performance of bolt and nut 5.

[0024] In order to increase the contact area between the bolt and the mating surface, a first washer 3 is fitted on the screw 2 so as to abut against the hexagonal block 1. The first washer 3 can increase the contact area between the hexagonal block 1 and the fastening material.

[0025] Nut 5 is threaded onto screw 2. Screw 2 is fitted with a second washer 4 that can abut against nut 5. Similarly, the second washer 4 can increase the contact area between nut 5 and fastening material.

[0026] At the end of the screw 2 furthest from the hexagonal block 1, a limiting groove 7 is carefully cut along the diameter of the screw, providing just the right space for the installation of the spring clip 8. A limiting ring 6 is cleverly coaxially fixed to the nut 5, and multiple slots 9 are cleverly designed through this limiting ring. The limiting ring 6 consists of a fixing ring and a retaining ring. The fixing ring is firmly fixed to the nut 5, while the retaining ring is fixed along the axial direction of the fixing ring, and the slots 9 are cleverly positioned on the retaining ring.

[0027] The spring buckle 8 is designed in a U-shape, cleverly seated within the limiting groove 7, with limiting rods 10 fixed at both ends. These limiting rods 10 and the spring buckle 8 are integrally molded stainless steel, allowing them to firmly contact the bottom of the retaining ring. By cleverly pressing the inclined portions on both sides of the spring buckle 8, it can be easily deformed, thus smoothly placing it within the limiting ring 6.

[0028] In practical use, first, thread the bolt through the equipment to be fastened, then screw the nut 5 onto the bolt and continue rotating it until it can no longer be turned. At this point, the first washer 3 and the second washer 4 will be in tight contact with the equipment. Next, simply squeeze the inclined portions on both sides of the spring clip 8 to deform it and place it inside the limiting ring 6. When the limiting rod 10 is firmly placed inside the limiting ring 6, release the spring clip 8, and it will automatically return to its original shape and securely lock into the slot 9, thus completing the installation of the spring clip 8.

[0029] In this way, the spring clip 8 cleverly connects the nut 5 and the bolt into a single unit, preventing any relative rotation between them. Therefore, there will be no loosening between the nut 5 and the bolt, which greatly enhances the connection stability and explosion-proof performance between the bolt and nut 5. At the same time, this connection method also ensures that the equipment is securely fastened, thus not affecting its explosion-proof performance.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high-performance fastener with explosion-proof function, characterized in that, Comprising: A bolt, the bolt comprising a hexagonal block (1) and a screw rod (2), the screw rod (2) being fixedly connected to the hexagonal block (1); A nut (5), the nut (5) being threadedly connected to the screw rod (2), a limiting groove (7) being provided in the end portion of the screw rod (2) away from the hexagonal block (1) along the diameter direction of the screw rod (2), a limiting ring (6) being coaxially fixed on the nut (5), a plurality of clamping grooves (9) being provided through the limiting ring (6), a spring buckle (8) in the shape of a bracket being provided in the limiting groove (7), the spring buckle (8) being located in two of the clamping grooves (9) and buckling within the limiting ring (6).

2. The high-performance fastener with explosion-proof function according to claim 1, characterized in that, Among them: The hexagonal block (1) and the screw rod (2) are integrally formed, and the hexagonal block (1) and the screw rod (2) are coaxially arranged.

3. A high-performance fastener with explosion-proof function according to claim 1, characterized in that, Among them: A first gasket ring (3) capable of abutting against the hexagonal block (1) is sleeved on the screw rod (2).

4. A high-performance fastener with explosion-proof function according to claim 1, characterized in that, Among them: A second gasket ring (4) capable of abutting against the nut (5) is sleeved on the screw rod (2).

5. A high-performance fastener with explosion-proof function according to claim 1, characterized in that, Among them: The limiting ring (6) includes a fixed ring fixed on the nut (5), a retaining ring being fixed on the side surface of the fixed ring along the axial direction, and the clamping groove (9) being provided on the retaining ring.

6. A high-performance fastener with explosion-proof function according to claim 5, characterized in that, Among them: Limit rods (10) are fixed to both ends of the spring buckle (8), and the limit rods (10) can abut against the bottom of the retaining ring.

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